events and random updates dont happen on world generated blocks

I have made a custom tree and dungeon system that uses the OnBlockAdded event, so that whenever a specific block generates, a completely random tree will generate there. and the same go's for the dungeun, but its underground instead.

this worked without any issues In 1.12.2, but with the new Mcreator update none of the event triggers appear to work for blocks that were generated normally in world gen, so in 1.14.4 there are weird blocks everywhere that the player is never intended to see, and there is a complete lack of trees and dungeuns unless the player cheats in the root blocks and places those by him/her self...

please help?